linux find regex

Question

I m having trouble using the regex of the find command  Probably something I don t understand about escaping on the command line   Why are these not the same   find -regex     1234567890   find -regex       digit       Bash  Ubuntu

User · Accepted Answer

Regular expressions with character classes (e.g. [[:digit:]]) are not supported in the default regular expression syntax used by find. You need to specify a different regex type such as posix-extended in order to use them.

Take a look at GNU Find's Regular Expression documentation which shows you all the regex types and what they support.

User · Answer

You should have a look on the -regextype argument of find  see manpage         -regextype type           Changes the regular expression syntax understood by -regex and -iregex            tests which occur later on the command line   Currently-implemented             types  are  emacs  this is the default   posix-awk  posix-basic             posix-egrep and posix-extended     I guess the emacs type doesn t support the    digit    construct  I tried it with posix-extended and it worked as expected   find -regextype posix-extended -regex     1234567890   find -regextype posix-extended -regex       digit

User · Answer

Well  you may try this     0-9

User · Answer

Note that -regex depends on whole path     -regex pattern               File name matches regular expression pattern                  This is a match on the whole path  not a search    You don t actually have to use -regex for what you are doing    find   -iname    0-9

[regex] linux find regex

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